FIELD: mechanical engineering.
SUBSTANCE: blade workpiece with a liner and an airfoil portion, made in the form of a tray and having a back, is produced. Transverse dimensions of the workpiece liner are less than the transverse dimensions of the finished blade workpiece. Longitudinal dimensions of the workpiece liner exceed the longitudinal dimensions of the finished blade workpiece. The finished blade is shaped from the workpiece by cold stamping in a split die after closing of its parts by the workpiece displacing and swaging along the longitudinal axis. In this case, calibration and twisting of the blade airfoil portion by inner shape-generating surfaces of the die under the blade airfoil portion are provided. Subsequent swaging of the workpiece liner under the action of the die punch is carried out. In this case, flattening of the liner in the direction of a longitudinal axle, distribution in lateral directions and calibration by inner shape-generating surfaces of the die under the liner are carried out.
EFFECT: improvement of quality of finished products.
4 cl, 27 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR PRODUCING BLADE OF GAS-TURBINE ENGINE | 2013 |
|
RU2524023C1 |
| METHOD OF FORGING WITH BURNISHING AND DEVICE TO THIS END | 2009 |
|
RU2393935C1 |
| METHOD OF OBTAINING ROUND PART EDGE, DEVICE FOR METHOD IMPLEMENTATION, AND STRIKER USED IN THIS DEVICE | 2008 |
|
RU2373018C1 |
| METHOD OF DIE FORMING WITH ROLLING AND DEVICE FOR IMPLEMENTATION OF THIS METHOD | 2006 |
|
RU2338615C2 |
| DETAIL SCREWING DEVICE | 2013 |
|
RU2542215C1 |
| DEVICE FOR TWISTING BLADE FEATHER OF GAS-TURBINE ENGINE | 2014 |
|
RU2557821C1 |
| METHOD FOR MAKING ARTICLE AND APPARATUS FOR PERFORMING THE SAME | 2000 |
|
RU2195382C2 |
| METHOD OF MANUFACTURE OF BLADES OF GAS-TURBINE ENGINES | 1990 |
|
RU2013179C1 |
| METHOD FOR MAKING BLADE OF CUTTING TOOL AND BLANK OF CUTTING TOOL BLADE | 2001 |
|
RU2211742C2 |
| METHOD FOR MAKING BLADES OF GAS-TURBINE ENGINE | 2004 |
|
RU2257277C1 |
